Patent · US Expired

Repetitive signal detector for preventing thermal runaway

US5418481A · kind A · utility

4Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 1993
Grant dateMay 23, 1995
Priority date
Expiry dateDec 10, 2013

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K5/19
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A circuit monitors electronic devices which require continuous clocking for non-destructive operation. The circuit samples a repetitive signal, such as a clock, from a device of interest (DOI). If, for whatever reason, the clock signal becomes absent, the circuit responds by deactivating the DOI. If the clock revives or becomes intermittent the circuit will not reactivate the DOI. The circuit will reactivate the DOI only upon application of an explicit reset signal. The circuit is all digital and therefore technology independent, and provides for precise control of the deactivation response time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.